CM at Risk (Construction Manager at Risk)
The contractor joins during design as an advisor, then converts that role into a guaranteed price.
Quick Answer
CM at Risk (CMAR) is a project delivery method where the owner hires the contractor early, during design, to advise on cost and constructability. Once the design is far enough along, the contractor converts that involvement into a Guaranteed Maximum Price and takes on the financial risk for costs above it. It blends early collaboration with fixed-price accountability.
The Full Picture
CM at Risk exists to fix a problem in traditional design-bid-build: the contractor has no input until the drawings are finished, so constructability issues and cost surprises surface only after the design is locked and bidding has begun. CMAR brings construction expertise into the room while the design can still change cheaply.
Mechanically, the owner selects a construction manager based on qualifications and a proposed fee — not a construction price, since one doesn't exist yet. The CM provides preconstruction services throughout design: cost estimates at each milestone, constructability reviews, scheduling input, and trade bid solicitation. At an agreed design milestone, usually near completion of construction documents, the CM converts that work into a Guaranteed Maximum Price. "At risk" refers to that moment — the CM now guarantees the number and absorbs cost overruns above it, the same risk allocation as a GMP contract.
In practice, a CM engaged at schematic design on a hospital project spends months producing estimates as the design develops, flags a curtain wall detail that would blow the budget, and eventually solicits and levels bids across dozens of trade packages before presenting a GMP the owner's board can approve.
For preconstruction teams, CMAR is where the precon function earns its keep. The GC's estimators reconcile the budget at every design stage, and the credibility of the eventual GMP rests entirely on how well that reconciliation and the underlying trade bid leveling were done. A CM brought on too late in design, or one that skips rigorous bid leveling before setting the GMP, loses most of CMAR's advantage.
Real Examples
Common Misconceptions
People assume: CM at Risk means the contractor builds the project with their own crews.
Actually: "At risk" refers to financial risk on the GMP, not who swings the hammer. Most of the work is still performed by subcontractors the CM solicits, levels, and buys out — the same as in other delivery methods.
People assume: A CM at Risk is selected on construction price.
Actually: The CM is typically selected on qualifications and a stated preconstruction/fee structure, because the construction cost isn't known until design is far along. Price competition happens later, at the trade-bid level.
Does MeltPlan Solve This?
Partially — adjacentMeltPlan doesn't manage the CMAR contract or the fee negotiation, but it supports the preconstruction work that makes the eventual GMP defensible. It levels the subcontractor bids across every trade package the CM solicits and produces verified quantity takeoffs, so the guaranteed price rests on complete, comparable numbers rather than gaps discovered after signing.
Level the trade bids behind your GMP in minutes →Frequently Asked Questions
What does "at risk" mean in CM at Risk?
It means that once the CM sets a Guaranteed Maximum Price, they absorb any construction costs above that ceiling for the defined scope. The owner sees open-book costs and shares in savings, but overruns are the contractor's problem, not theirs.
How is a CM at Risk selected if not on price?
Owners typically run a qualifications-based selection, evaluating the firm's experience, staff, and proposed preconstruction fee. Construction cost competition happens later, when the CM solicits and levels trade subcontractor bids to build the GMP.
What's the difference between CM at Risk and design-bid-build?
In design-bid-build, the design is completed first and contractors bid a lump sum on finished documents with no prior input. In CMAR, the contractor is engaged during design, shapes the budget and constructability along the way, and later guarantees a price.
When does the GMP get set in a CMAR project?
It varies by project, but it's common to set the GMP once construction documents are largely complete — often 90% CDs — after the CM has solicited and leveled bids for the major trade packages.
Why do owners choose CM at Risk delivery?
It lets construction expertise inform the design while there's still time to change it cheaply, and it gives the owner a guaranteed ceiling before committing to full construction — a balance design-bid-build and pure cost-plus don't offer.